DAIRY FARMING DAIRYING. 905 



hay was fed in the same manner during the alternate periods. Both lots were fed a 

 uniform ration of grain and beets. On alfalfa hay the 12 cows produced 9,862.74 11)s. 

 of milk and 511.47 ll)s. of butter, and on wild hay 9,722.49 lbs. of milk and 502.07 

 lbs. of butter, showing a difference of 140.25 l])s. of milk and 9.40 lbs. of butter in 

 favor of alfalfa. 



A comparative test was also made of corn silage and sugar beets fed in equal 

 amounts in connection with a uniform ration of alfalfa hay and grain. The test 

 was made with 2 lots of 5 cows each and lasted 5 weeks. The difference in produc- 

 tion of the 2 lots for the 5 weeks previous to the test when both were fed silage was 

 129.2 lbs. of milk and 5.7 lbs. of butter, and the difference during the 5 weeks of the 

 test, when one lot was fed silage and the other lot sugar beets, was 221.4 lbs. of milk 

 and 10 lbs. of butter, the results being in favor of silage. "While corn silage gave 

 slightly better results than sugar beets when fed to dairy cows, the difference was so 

 small that it is safe to say they are quite equal in feeding value." 



The best week in a cow's lactation period (pp. 19-21). — To obtain information on this 

 subject 155 records from the Minnesota Station and 84 from the Nebraska Station 

 were compiled. The results show that the greatest number of cows made their best 

 yield of milk during the third week and their l)est yield of butter during the second 

 week, the difference between the second and third weeks not being very great. The 

 first week was calculated as l:)eginning 4 days after calving. 



Feeding- the dairy cow, C. H. Pickles {Missouri Sta. Bui. 58,j)p. 53-12). — Based 

 upon the results of practical feeding by dairymen and of scientific experiments, the 

 author offers suggestions for feeding adapted to Missouri conditions. The subjects 

 touched upon in the discussion include turning on pasture in the spring, grain feed- 

 ing on pasture, providing for periods of short pasture, reasons for feeding balanced 

 rations, buying concentrated feeds, grinding feed, computing rations, and the use of 

 feeding standards. S^n'eral suitable rations are suggested. 



Butter record of the Buckhold herd, H. Watxy {Jour. Bd. Agr. \_London'], 9 

 {1902), No. S, pp. 312-319). — The herd comprised 46 cows during the year ended 

 September 30, 1902. The average annual production of 29 cows remaining in the 

 herd for the whole 3-ear was 450.8 l])s. of butter per cow. 



Milking" and butter test trials, E. Mathews {Jovr. Bd. Agr. [London], 9 {1902), 

 No. 3, pp. 297-306). — This is a brief account of milking trials which have been con- 

 ducted in England during the last 25 years, and of butter test trials first held in 

 1886, with a discussion of some of the resvilts obtained. 



On the influence of feeding- on the composition of the fat of milk, B. 

 S.TOLLEMA {Proc. Sec. Sci., Konirilcl. Akad. Wetensch. Amsierd/nn, 4 {1901-2), jip. 

 746-756, j)J. 1). — The author studied the influence of feeding sugar-beet tops, sugar, 

 and molasses upon the index of refraction and the content of volatile fatty acids of 

 the butter fat. The feeding of sugar-beet tops as tested with 4 cows on pasture 

 during one month apparently caused an increase of about 8 in the average Reichert- 

 "Wollny number and a decrease of about 6 in the refraction number of the butter fat. 

 The fat content of the milk was somewhat increased. In another test made with 

 3 cows in the stable and lasting about 1 month, raw sugar in daily amounts varying 

 from 0.4 to 2 kg. was estimated as increasing the Reichert-Wollny number of 

 the butter fat from 2 cows 4.7 and 5.95, respectively, as compared with the Reichert- 

 Wollny number of the butter fat from the control animal. In a similar test with 

 molasses and sugar the increase in tlie Reichert-Wollny numl)er was nearly as 

 marked, the conclusion being drawn from the last 2 experiments that sugar exer- 

 cises a considerable influi-nce on the increase of the volatile fatty acids in butter fat. 



On the composition of cows' milk, H. C. Sherman {.Tour. Amer. Chem. Soc, 25 

 {1903), No. 2, pp. 132-142, jig. i).— The mixed milk of a herd of about 600 pure-bred 

 and grade Jerseys was sampled monthly for the 2 years beginning April, 1900, and 

 analyzed to determine seasonal variations in composition. The samples were all of 



